Flora of North America species comparison

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Notholaena lemmonii

Lemmon's cloak fern
Stem

scales weakly bicolored, margins brown, narrow, poorly defined, thin, sparsely ciliate-denticulate.
Leaves

7–30 cm.
Petiole

black to dark brown, much shorter than blade, grooved or flattened adaxially, bearing scattered glands and a few scales near base.
Blade

linear-lanceolate, 2-pinnate-pinnatifid, 3–6 times longer than wide, abaxially with conspicuous white or pale yellow farina, scales absent, adaxially glabrous at maturity;

basal pinnae usually slightly smaller than adjacent pair, ± equilateral, proximal basiscopic pinnules not greatly enlarged.
Ultimate segments

sessile, broadly adnate to costae;

segment margins slightly recurved, rarely concealing sporangia.
Sporangia

containing 64 spores.
2n

= 60.

Notholaena lemmonii
Phenology Sporulating summer–fall.
Habitat Rocky slopes and cliffs, usually on granitic or volcanic substrates
Elevation 1000–1500 m (3300–4900 ft)
Distribution
from FNA
AZ; w Mexico
[WildflowerSearch map]
[BONAP county map]
Discussion

According to E. Wollenweber (1984), Notholaena lemmonii shows remarkable infraspecific variability in the chemical composition of the farina. R. M. Tryon (1956) recognized two varieties of N. lemmonii. The type collection of the species came from southern Arizona, and all specimens from the flora area are N. lemmonii var. lemmonii. The disjunct N. lemmonii var. australis, known only from the Mexican states of Puebla and Oaxaca, probably represents a distinct species.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 2.
Parent taxa Pteridaceae > Notholaena
Sibling taxa
N. aliena, N. aschenborniana, N. californica, N. copelandii, N. grayi, N. greggii, N. nealleyi, N. neglecta, N. standleyi
Synonyms Cheilanthes lemmonii, Chrysochosma lemmonii
Name authority D. C. Eaton: Bull. Torrey Bot. Club 7: 63. (1880)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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